Intel 865G Chipset

The Intel® 865G chipset is designed for use in a desktop system based on an Intel® Pentium® 4 processor or the processor code named Prescott and supports FSB frequencies of 400 MHz,533 MHz, and 800 MHz. The 865G chipset contains two main components: Graphics and Memory Controller Hub (GMCH) for the host bridge and I/O Controller Hub for the I/O subsystem. The 865G chipset uses either the 82801EB ICH5 or 82801ER ICH5R for the I/O Controller Hub. This document is the datasheet for the 82865G Graphics and Memory Controller Hub (GMCH) component.
The Intel® 865G chipset platform supports the following processors:
• Intel® Pentium® 4 processor with 512-KB L2 Cache on 0.13 micron process in the 478-pin
package.
• Processor coded named Prescott. The processor code named Prescott returns a processor
signature of 00000F3xh when the CPUID instruction is executed with EAX=1.